GeomSpace is interactive geometry software for different geometric spaces. You can build your own universe of any dimension and with any geometry. You can choose Euclidean, elliptic, hyperbolic, Minkowskii among other spaces.

The volume of actual knowledge prevents people from applying it, because even the cleverest persons can not learn everything they need. Try to overturn this with idea of Just-In-Time Knowledge. Intelligent e-knowledge base engine provided.

PPR is a spooler for PostScript printers. It supports PPD files, and provides operator alerts, job result messages, and error recovery. It is integrated with Netatalk, CAP60, Samba, and Ghostscript. It has command line and web interfaces.

This is a command line date/time manipulation and formatting program, very useful in scripts. You can easily add or subtract days, hours and/or minutes from a specified date. Supports all date(1) output formats plus more.